Add additional functions to Morphir.SDK.LocalDate and ensure exports and Morphir.IR.SDK.LocalDate matches

[DamianReeves]

Add additional functions to Morphir.SDK.LocalDate and ensure exports and Morphir.IR.SDK.LocalDate matches.

This PR adds a few new accessors to LocalDate, removes the recently added RataDie functions (not common enough in other languages to make pat of SDK), and updates Morphir.IR.SDK.LocalDate to have a module spec that actually matches the exports of LocalDate.

Terms

THIS SOFTWARE IS CONTRIBUTED SUBJECT TO THE TERMS OF THE TERMS OF THE CCLA DATED 2017-11-07 WITH FINOS/LINUX FOUNDATION (FORMERLY THE SYMPHONY SOFTWARE FOUNDATION CCLA).

THIS SOFTWARE IS LICENSED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND ANY WARRANTY OF NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. THIS SOFTWARE MAY BE REDISTRIBUTED TO OTHERS ONLY BY EFFECTIVELY USING THIS OR ANOTHER EQUIVALENT DISCLAIMER IN ADDITION TO ANY OTHER REQUIRED LICENSE TERMS.

[AttilaMihaly]

Looks great!